A.Fire a red flare at night or a red smoke signal by day
B.Send the Morse signal N by flashing light
C.Make a round turn (360°) and resume course
D.Make an S turn (hard right then hard left) and resume course
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A.greater range
B.effectiveness on all types of fires
C.cleanliness
D.All of the above
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
A.carried by hand to a fire
B.carried or rolled to a fire
C.recharged in the field
D.used on class 'B' fires
A.electricity
B.fuel
C.oxygen
D.heat
A.opened and burned material removed
B.left closed with vents off until all boundaries are cool
C.checked for oxygen content
D.doused with water to prevent reflash
最新試題
A large oil fire on the deck of a ship can be fought most effectively with（）.
A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
An inert gas system is designed to reduce the possibility of tank explosions by（）.
An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（）
At night while the ship is tied up to the dock，a fire breaks out in a cargo hatch. After sounding the alarm，what should the person on watch do?（）
An ABC dry chemical fire extinguisher would be LEAST effective against a fire in（）.
A spanner is a（）.
A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?（）
After extinguishing a paint locker fire using the fixed CO2 system，the next action is to have the space（）.
An advantage of a dry chemical over a carbon dioxide fire extinguisher is its（）.